Heat-retainer for ovens.



o. cansan. l HEAT RETAINER POB Oms. LPPLIULTIDI FILBDVIL! 29. 1.0.

904,81 1. Patented mmf` 17, 190s.

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iiie the heat UNITED sTATPias PATENT OFFICE.

-CRNEILUS CROSSAX, 0F JOHNSTO\V.\', PENNSYLYANIA.

No. ao4,sii.

`To all whom 'it may concern:

Be it known that I, CoaxsiLUs Cnossix, a citizen of the United States of America. residing at Johnstown= in the county of Cambriau and State of Pennsylvania, have invented certain new and useful Improvements in' Heat-Retainers for Ovens. of `which the following is a specification. reference being had therein to the accompanying drawing.

This invention relates to a heat retainer for'ovens, and its primary object is-to increase the efficiency of an oven as a heating medium, the retainer being designed to conof an oven centrally thereof distribute the same upon the sides of ,an oven whereby matter being baked or heated upon the retainer will be thoroughly cooked upon all sides.

A further object of this inventionis to prov-ide `a sim le, durable and inexpensive ieat retainer t at can be used in connection with ovens of various types.

Theaboveobjects are accomplished by a retainer constructed of a durable non- 'fusible material, iis clay of various grades.

The detail construction entering into niv inventionwill be presently1 described and and equally vthen specifically pointed out iii the appended claims. e Y i Referring to the drawings, Figure lis a Vcross sectional v iew of a portion of an oven containing 'my perspective view of the heat retainer.

In the accompanying drawings, 1 designates an oven of the. conventional forni having ahorizontal partition 2 beneath which is located a. burner'3 adapted to thorou hly h'eat the partition 2.

n the partition 2 is located niv heat retainerconiprising a rectan lar s ell 4 havin its plura ity of longitudinally alining transverse openings 6, said openings being located a'jacent to the lower edge of the re- Specica-tion o! Letters Patent. Application tiled Hay 29, 1908.

heat retainer, and Fig. 2 is a .side walls 5 provided with ay rateneednov. 17, iaos.

Serial No. 435.806.

tainer. The shell l is inverted upon the partition :2 to forni a heat collecting coinpartnient T, and from this compartment the heat is disseminated to increase the '-iiloi'iil intensity of the oven.

The retainer is made from fireclay, ballclay, or a similar Grade of clay capable of withstanding a hivli degree of heat and having lasting quali cations.

I he heat retainer is particularly designed for baking ovens, and i a baking oven heated by a wood lire. the fire can be withdrawn after the retainer has been heated, and bread baked directly upon the retainer. If an oven is heated `by as burners as shown. the burner can be regulated to sim ly maintain a pilot light, after 'the retainer ias been heated; In both instances, considerable wood and gas can be saved. i

The retainer can be made of any desired size according to the oven for which the same is used.

Having now described iny invention what l claim as new, ist v 1. The combination with an oven having 'a horizontal artit-ion, 'of an inverted rectangular-sliel located u on' said partition, the sidewallsof said sh having lon itiidinally aliniiig transverse openings ormed therein adjacent to the lower edges of said shell. substantially as described.

2. A heat retainer foi-.ovens comprising a shell inade of a non-fusible material, with the side walls of said shell provided with longitudinallv alining openings adjacent to but spaced m the lower edges thereof, substantially as described. l

, In testimony whereof I aliix my signature in the presence of two witnesses- CORNEIL. CROSSAN.

yWitnesses:

i CHARLES GALLAGBEB, Eow. NIGHTINGAIE. 

